SINGH, ASHOK KUMAR <br/><br/>
SCIENCE AND TECHNOLOGY : FOR CIVIL SERVICES EXAMINATIONS. 

 - 13th rep.  2013 
 - NEW DELHI  TATA MCGRAW-HILL PUB. CO. LTD. 
 - 646 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  HIGHER STUDIES
<br/><br/><label>Dewey Class. No.: </label>361.1.1  / SIN